NBE Transesophageal Echocardiography 4

Question 1

Which TEE finding is most specific for cardiac tamponade physiology?

Accepted Answer

Left ventricular diastolic collapse

Answer

Left ventricular diastolic collapse is the most specific echocardiographic sign of cardiac tamponade, though right chamber collapse is more sensitive.

Question 2

On TEE, mitral valve prolapse is defined as leaflet displacement into the left atrium of at least:

Accepted Answer

5 mm beyond the mitral annular plane

Answer

Mitral valve prolapse on echocardiography is defined as ≥2 mm systolic displacement of leaflet tissue above the mitral annular plane in the long-axis view, but the classic criterion often cited is 5 mm for classic MVP.

Question 3

Which TEE view provides the best assessment of the subvalvular mitral apparatus including papillary muscles?

Accepted Answer

Transgastric two-chamber view

Answer

The transgastric two-chamber view places the probe close to the LV apex, providing excellent visualization of papillary muscles and chordae tendineae.

Question 4

In assessing aortic dissection by TEE, which finding confirms the diagnosis?

Accepted Answer

Visualization of an intimal flap separating true and false lumen

Answer

An intimal flap creating true and false lumens is the definitive TEE finding for aortic dissection.

Question 5

During intraoperative TEE for mitral valve repair, a residual regurgitant jet with vena contracta > 3 mm after weaning from bypass indicates:

Accepted Answer

Need to return to bypass for revision

Answer

A vena contracta > 3 mm post-repair indicates significant residual MR and typically warrants return to cardiopulmonary bypass for revision.

(NBE) National Board of Echocardiography Practice Test

(NBE) National Board of Echocardiography Practice Test

NBE Transesophageal Echocardiography 4